Abaixo está uma instrução que descreve uma tarefa de geração de SQL, combinada com uma entrada que fornece mais contexto sobre os esquemas de tabela disponíveis. Escreva o código SQL que responda adequadamente à solicitação
 ###Instrução: Quantos % dos casamentos entre pessoas do mesmo sexo são casamentos entre homens para 923?
 ###Tabelas: CREATE TABLE current_codes (current_codes_id AUTO_INCREMENT PRIMARY KEY, Code VARCHAR, Subdivision name ( be ) (BGN/PCGN) VARCHAR, Subdivision name ( be ) (GOST) VARCHAR, Subdivision name ( ru ) (BGN/PCGN) VARCHAR, Subdivision name ( ru ) (GOST) VARCHAR, Subdivision category VARCHAR) CREATE TABLE economy (economy_id AUTO_INCREMENT PRIMARY KEY, Rank VARCHAR, Name VARCHAR, Headquarters VARCHAR, Revenue (Mil.€) VARCHAR, Profit (Mil.€) VARCHAR, Employees (World) INT) CREATE TABLE personal_life (personal_life_id AUTO_INCREMENT PRIMARY KEY, Year INT, Song Title VARCHAR, Film Name VARCHAR, Language VARCHAR, Music Director VARCHAR) CREATE TABLE marriage_statistics (marriage_statistics_id AUTO_INCREMENT PRIMARY KEY, Year VARCHAR, Marriages between men INT, Marriages between women INT, Same-sex marriages INT, Total marriages INT, % same-sex marriages VARCHAR) CREATE TABLE 1850s (1850s_id AUTO_INCREMENT PRIMARY KEY, Year INT, Number of tropical storms INT, Number of hurricanes INT, Number of major hurricanes INT, Deaths VARCHAR, Strongest storm VARCHAR)  
SELECT COUNT % same-sex marriages FROM marriage_statistics WHERE Marriages between men = 923